Keyword Analysis & Research: when was alcatraz opened as a prison

Keyword Analysis

Keyword	CPC	PCC	Volume	Score	Length of keyword
when was alcatraz opened as a prison	0.81	0.8	9227	79	36
when	0.66	0.3	4646	74	4
was	1.08	0.1	6203	30	3
alcatraz	0.88	0.6	6508	100	8
opened	1.37	0.6	8614	88	6
as	0.56	0.2	4405	22	2
a	1.93	0.5	7519	65	1
prison	1.5	0.7	3091	49	6

Keyword	CPC	PCC	Volume	Score
when was alcatraz opened as a prison	1.32	0.1	5993	69
when was alcatraz closed as a prison	0.56	0.7	5699	50
when did alcatraz close as a prison	0.74	0.3	5807	92
when did alcatraz become a federal prison	0.73	0.7	4062	60
how long was alcatraz a prison	1.38	0.9	6960	55
what was alcatraz before a prison	0.03	0.6	2438	80
when did alcatraz prison open and close	0.32	0.1	191	14
when did alcatraz stop being a prison	0.27	0.1	8333	75
alcatraz prison history and facts	0.04	0.7	7765	28
information about alcatraz prison	0.03	0.3	4015	35